A game beset by injuries on both sides during the first half, with the hosts forced into three substitutions and the visitors losing Roberto Firmino to a knock, rarely looked like ending in an alternative scoreline.
But Jürgen Klopp’s men nevertheless reclaimed first place in the league at the beginning of a hectic seven days in the division.
Here are five talking points from Old Trafford…
Possession is only nine-tenths...
Liverpool’s confident authority this season, home and away, was reflected in their dominance of the ball against their old foes, with Klopp’s men claiming 64.